diff --git a/CHANGELOG.md b/CHANGELOG.md
index be9be9f..f33bd68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ This project adheres to [Semantic Versioning](http://semver.org/) and
 
 - JSON-LD encoder can handle `RDF.Graph`s and `RDF.Description`s 
 
+### Changed
+
+- Use Jason instead of Poison for JSON encoding and decoding, since it's faster and more standard conform
+
 
 [Compare v0.2.1...HEAD](https://github.com/marcelotto/jsonld-ex/compare/v0.2.1...HEAD)
 
diff --git a/README.md b/README.md
index 54a3bfa..241f2dd 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ end
  "homepage": "http://manu.sporny.org/"
 }
 """
-|> Poison.Parser.parse!
+|> Jason.decode!
 |> JSON.LD.expand
 ```
 
@@ -67,7 +67,7 @@ produces
 ### Compact a document
 
 ```elixir
-context = Poison.Parser.parse! """
+context = Jason.decode! """
   {
     "@context": {
       "name": "http://xmlns.com/foaf/0.1/name",
@@ -91,7 +91,7 @@ context = Poison.Parser.parse! """
   }
 ]
 """
-|> Poison.Parser.parse!
+|> Jason.decode!
 |> JSON.LD.compact(context)
 ```
 
diff --git a/lib/json/ld/decoder.ex b/lib/json/ld/decoder.ex
index e6a049d..057e052 100644
--- a/lib/json/ld/decoder.ex
+++ b/lib/json/ld/decoder.ex
@@ -86,14 +86,12 @@ defmodule JSON.LD.Decoder do
     end
   end
 
-  # TODO: This should not be dependent on Poison as a JSON parser in general,
-  #   but determine available JSON parsers and use one heuristically or by configuration
   def parse_json(content, _opts \\ []) do
-    Poison.Parser.parse(content)
+    Jason.decode(content)
   end
 
   def parse_json!(content, _opts \\ []) do
-    Poison.Parser.parse!(content)
+    Jason.decode!(content)
   end
 
   def node_to_rdf(nil), do: nil
diff --git a/lib/json/ld/encoder.ex b/lib/json/ld/encoder.ex
index 11dd2d5..63946ac 100644
--- a/lib/json/ld/encoder.ex
+++ b/lib/json/ld/encoder.ex
@@ -319,14 +319,12 @@ defmodule JSON.LD.Encoder do
   end
 
 
-  # TODO: This should not be dependent on Poison as a JSON encoder in general,
-  #   but determine available JSON encoders and use one heuristically or by configuration
   defp encode_json(value, opts \\ []) do
-    Poison.encode(value)
+    Jason.encode(value)
   end
 
   defp encode_json!(value, opts \\ []) do
-    Poison.encode!(value)
+    Jason.encode!(value)
   end
 
 end
diff --git a/mix.exs b/mix.exs
index d385544..74054f4 100644
--- a/mix.exs
+++ b/mix.exs
@@ -60,7 +60,7 @@ defmodule JSON.LD.Mixfile do
   defp deps do
     [
       {:rdf, "~> 0.4"},
-      {:poison, "~> 3.0"},
+      {:jason, "~> 1.0"},
       {:dialyxir, "~> 0.4",       only: [:dev, :test], runtime: false},
       {:credo, "~> 0.6",          only: [:dev, :test], runtime: false},
       {:ex_doc, "~> 0.14",        only: :dev, runtime: false},
diff --git a/mix.lock b/mix.lock
index 5a81652..50e4c32 100644
--- a/mix.lock
+++ b/mix.lock
@@ -9,10 +9,10 @@
   "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, optional: false]}]},
   "hackney": {:hex, :hackney, "1.11.0", "4951ee019df102492dabba66a09e305f61919a8a183a7860236c0fde586134b6", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, optional: false]}, {:idna, "5.1.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, optional: false]}]},
   "idna": {:hex, :idna, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, optional: false]}]},
+  "jason": {:hex, :jason, "1.0.0", "0f7cfa9bdb23fed721ec05419bcee2b2c21a77e926bce0deda029b5adc716fe2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, optional: true]}]},
   "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], []},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
-  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], []},
   "rdf": {:hex, :rdf, "0.4.0", "10db43f71931f95e3707a5a0357d46149e6c47be8ae83f17199ff296765891db", [:mix], []},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], []},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], []},
diff --git a/test/suite/from_rdf_test.exs b/test/suite/from_rdf_test.exs
index 3cb415f..96b474d 100644
--- a/test/suite/from_rdf_test.exs
+++ b/test/suite/from_rdf_test.exs
@@ -49,6 +49,6 @@ defmodule JSON.LD.TestSuite.FromRdfTest do
     filename
     |> file
     |> File.read!
-    |> Poison.Parser.parse!
+    |> Jason.decode!
   end
 end
diff --git a/test/support/test_suite.ex b/test/support/test_suite.ex
index f775c10..50cc465 100644
--- a/test/support/test_suite.ex
+++ b/test/support/test_suite.ex
@@ -7,7 +7,7 @@ defmodule JSON.LD.TestSuite do
 
   def parse_json_file!(file) do
     case File.read(file(file)) do
-      {:ok,   content} -> Poison.Parser.parse!(content)
+      {:ok,   content} -> Jason.decode!(content)
       {:error, reason} -> raise File.Error, path: file, action: "read", reason: reason
     end
   end
diff --git a/test/unit/compaction_test.exs b/test/unit/compaction_test.exs
index a35b9df..c20455a 100644
--- a/test/unit/compaction_test.exs
+++ b/test/unit/compaction_test.exs
@@ -4,7 +4,7 @@ defmodule JSON.LD.CompactionTest do
   alias RDF.NS.{RDFS, XSD}
 
   test "Flattened form of a JSON-LD document (EXAMPLES 57-59 of https://www.w3.org/TR/json-ld/#compacted-document-form)" do
-    input = Poison.Parser.parse! """
+    input = Jason.decode! """
       [
         {
           "http://xmlns.com/foaf/0.1/name": [ "Manu Sporny" ],
@@ -16,7 +16,7 @@ defmodule JSON.LD.CompactionTest do
         }
       ]
       """
-    context = Poison.Parser.parse! """
+    context = Jason.decode! """
       {
         "@context": {
           "name": "http://xmlns.com/foaf/0.1/name",
@@ -27,7 +27,7 @@ defmodule JSON.LD.CompactionTest do
         }
       }
       """
-    assert JSON.LD.compact(input, context) == Poison.Parser.parse! """
+    assert JSON.LD.compact(input, context) == Jason.decode! """
       {
         "@context": {
           "name": "http://xmlns.com/foaf/0.1/name",
@@ -324,16 +324,16 @@ defmodule JSON.LD.CompactionTest do
         }
       },
       "compact-0007" => %{
-        input: Poison.Parser.parse!("""
+        input: Jason.decode!("""
           {"http://example.org/vocab#contains": "this-is-not-an-IRI"}
         """),
-        context: Poison.Parser.parse!("""
+        context: Jason.decode!("""
           {
           "ex": "http://example.org/vocab#",
           "ex:contains": {"@type": "@id"}
           }
         """),
-        output: Poison.Parser.parse!("""
+        output: Jason.decode!("""
           {
             "@context": {
               "ex": "http://example.org/vocab#",
@@ -355,7 +355,7 @@ defmodule JSON.LD.CompactionTest do
   describe "@reverse" do
     %{
       "compact-0033" => %{
-        input: Poison.Parser.parse!("""
+        input: Jason.decode!("""
           [
             {
               "@id": "http://example.com/people/markus",
@@ -371,13 +371,13 @@ defmodule JSON.LD.CompactionTest do
             }
           ]
         """),
-        context: Poison.Parser.parse!("""
+        context: Jason.decode!("""
           {
             "name": "http://xmlns.com/foaf/0.1/name",
             "isKnownBy": { "@reverse": "http://xmlns.com/foaf/0.1/knows" }
           }
         """),
-        output: Poison.Parser.parse!("""
+        output: Jason.decode!("""
           {
             "@context": {
               "name": "http://xmlns.com/foaf/0.1/name",
diff --git a/test/unit/expansion_test.exs b/test/unit/expansion_test.exs
index 0429bfd..36e4f49 100644
--- a/test/unit/expansion_test.exs
+++ b/test/unit/expansion_test.exs
@@ -6,7 +6,7 @@ defmodule JSON.LD.ExpansionTest do
   alias RDF.NS.{RDFS, XSD}
 
   test "Expanded form of a JSON-LD document (EXAMPLE 55 and 56 of https://www.w3.org/TR/json-ld/#expanded-document-form)" do
-    input = Poison.Parser.parse! """
+    input = Jason.decode! """
       {
          "@context":
          {
@@ -20,7 +20,7 @@ defmodule JSON.LD.ExpansionTest do
          "homepage": "http://manu.sporny.org/"
       }
       """
-    assert JSON.LD.expand(input) == Poison.Parser.parse! """
+    assert JSON.LD.expand(input) == Jason.decode! """
       [
         {
           "http://xmlns.com/foaf/0.1/name": [
@@ -540,7 +540,7 @@ defmodule JSON.LD.ExpansionTest do
         }]
       },
       "expand-0004" => %{
-        input: Poison.Parser.parse!(~s({
+        input: Jason.decode!(~s({
           "@context": {
             "mylist1": {"@id": "http://example.com/mylist1", "@container": "@list"},
             "mylist2": {"@id": "http://example.com/mylist2", "@container": "@list"},
@@ -549,7 +549,7 @@ defmodule JSON.LD.ExpansionTest do
           },
           "http://example.org/property": { "@list": "one item" }
         })),
-        output: Poison.Parser.parse!(~s([
+        output: Jason.decode!(~s([
           {
             "http://example.org/property": [
               {
@@ -700,7 +700,7 @@ defmodule JSON.LD.ExpansionTest do
   describe "@reverse" do
     %{
       "expand-0037" => %{
-        input: Poison.Parser.parse!(~s({
+        input: Jason.decode!(~s({
           "@context": {
             "name": "http://xmlns.com/foaf/0.1/name"
           },
@@ -713,7 +713,7 @@ defmodule JSON.LD.ExpansionTest do
             }
           }
         })),
-        output: Poison.Parser.parse!(~s([
+        output: Jason.decode!(~s([
           {
             "@id": "http://example.com/people/markus",
             "@reverse": {
@@ -737,7 +737,7 @@ defmodule JSON.LD.ExpansionTest do
         ]))
       },
       "expand-0043" => %{
-        input: Poison.Parser.parse!(~s({
+        input: Jason.decode!(~s({
           "@context": {
             "name": "http://xmlns.com/foaf/0.1/name",
             "isKnownBy": { "@reverse": "http://xmlns.com/foaf/0.1/knows" }
@@ -757,7 +757,7 @@ defmodule JSON.LD.ExpansionTest do
             ]
           }
         })),
-        output: Poison.Parser.parse!(~s([
+        output: Jason.decode!(~s([
           {
             "@id": "http://example.com/people/markus",
             "http://xmlns.com/foaf/0.1/knows": [
@@ -870,7 +870,7 @@ defmodule JSON.LD.ExpansionTest do
       },
 
       "@reverse object with an @id property" => %{
-        input: Poison.Parser.parse!(~s({
+        input: Jason.decode!(~s({
           "@id": "http://example/foo",
           "@reverse": {
             "@id": "http://example/bar"
@@ -879,7 +879,7 @@ defmodule JSON.LD.ExpansionTest do
         exception: JSON.LD.InvalidReversePropertyMapError,
       },
       "colliding keywords" => %{
-        input: Poison.Parser.parse!(~s({
+        input: Jason.decode!(~s({
           "@context": {
             "id": "@id",
             "ID": "@id"
diff --git a/test/unit/flattening_test.exs b/test/unit/flattening_test.exs
index 2984788..88de6cd 100644
--- a/test/unit/flattening_test.exs
+++ b/test/unit/flattening_test.exs
@@ -4,7 +4,7 @@ defmodule JSON.LD.FlatteningTest do
   alias RDF.NS.RDFS
 
   test "Flattened form of a JSON-LD document (EXAMPLE 60 and 61 of https://www.w3.org/TR/json-ld/#flattened-document-form)" do
-    input = Poison.Parser.parse! """
+    input = Jason.decode! """
       {
         "@context": {
           "name": "http://xmlns.com/foaf/0.1/name",
@@ -23,7 +23,7 @@ defmodule JSON.LD.FlatteningTest do
         ]
       }
       """
-    assert JSON.LD.flatten(input, input) == Poison.Parser.parse! """
+    assert JSON.LD.flatten(input, input) == Jason.decode! """
       {
         "@context": {
           "name": "http://xmlns.com/foaf/0.1/name",
@@ -107,7 +107,7 @@ defmodule JSON.LD.FlatteningTest do
       ]
     },
     "reverse properties" => %{
-      input: Poison.Parser.parse!("""
+      input: Jason.decode!("""
         [
           {
             "@id": "http://example.com/people/markus",
@@ -125,7 +125,7 @@ defmodule JSON.LD.FlatteningTest do
           }
         ]
       """),
-      output: Poison.Parser.parse!("""
+      output: Jason.decode!("""
         [
           {
             "@id": "http://example.com/people/dave",
@@ -155,7 +155,7 @@ defmodule JSON.LD.FlatteningTest do
       """)
     },
     "Simple named graph (Wikidata)" => %{
-      input: Poison.Parser.parse!("""
+      input: Jason.decode!("""
       {
         "@context": {
           "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
@@ -187,7 +187,7 @@ defmodule JSON.LD.FlatteningTest do
         ]
       }
       """),
-      output: Poison.Parser.parse!("""
+      output: Jason.decode!("""
         [{
         "@id": "http://example.org/ParisFact1",
         "@type": ["http://www.w3.org/1999/02/22-rdf-syntax-ns#Graph"],
@@ -212,7 +212,7 @@ defmodule JSON.LD.FlatteningTest do
       """)
     },
     "Test Manifest (shortened)" => %{
-      input: Poison.Parser.parse!("""
+      input: Jason.decode!("""
         {
           "@id": "",
           "http://example/sequence": {"@list": [
@@ -224,7 +224,7 @@ defmodule JSON.LD.FlatteningTest do
           ]}
         }
       """),
-      output: Poison.Parser.parse!("""
+      output: Jason.decode!("""
         [{
           "@id": "",
           "http://example/sequence": [{"@list": [{"@id": "#t0001"}]}]
@@ -237,7 +237,7 @@ defmodule JSON.LD.FlatteningTest do
       options: %{}
     },
     "@reverse bnode issue (0045)" => %{
-      input: Poison.Parser.parse!("""
+      input: Jason.decode!("""
         {
           "@context": {
             "foo": "http://example.org/foo",
@@ -247,7 +247,7 @@ defmodule JSON.LD.FlatteningTest do
           "bar": [ "http://example.org/origin", "_:b0" ]
         }
       """),
-      output: Poison.Parser.parse!("""
+      output: Jason.decode!("""
         [
           {
             "@id": "_:b0",
diff --git a/test/unit/iri_compaction_test.exs b/test/unit/iri_compaction_test.exs
index 90a77ea..41a9ae8 100644
--- a/test/unit/iri_compaction_test.exs
+++ b/test/unit/iri_compaction_test.exs
@@ -210,7 +210,7 @@ defmodule JSON.LD.IRICompactionTest do
 
   describe "compact-0018" do
     setup do
-      context = JSON.LD.context(Poison.Parser.parse! """
+      context = JSON.LD.context(Jason.decode! """
       {
         "id1": "http://example.com/id1",
         "type1": "http://example.com/t1",
@@ -324,7 +324,7 @@ defmodule JSON.LD.IRICompactionTest do
           do: [values],
           else: values
          Enum.each(values, fn value ->
-          value = Poison.Parser.parse!(value)
+          value = Jason.decode!(value)
            @tag data: {term, value}
            test "uses #{term} for #{inspect value, limit: 3}",
                 %{data: {term, value}, example_context: context,